It is a shame that many citizens are becoming conditioned to being afraid of concealed weapons. I think the media is mostly to blame for planting that fear.
How can you fear something you never see? That is the thing people that know I carry absolutely FREAK when I open carry. When I conceal and something starts happening that seems shady or it is time to leave they are the first to lean over and whisper in my ear,"you have your gun right?!"